ASP.Net 4.5 introduced more options to the Text Mode property: Color, Date, DateTime, DateTimeLocal, Email, Month, Number,Range, Search, Phone, Url, Week

But remember all these new options will work only with browsers supporting these HTML5 features (Ex: IE 10). For all other browsers these textbox's will behave as normal textbox.

Ps: Here is a nice website, where you can test your browser HTML5 features: http://html5test.com/